Spray Foam Metal Roof

This construction approach was first used in the 1970s and it has been implemented much more widely since it was first included in the international code council s icc model building code in 2007 irc section 806 4.

Spray foam metal roof.

We often have interest regarding spray foam insulation for metal buildings or pole barns due to condensation coming from the roof underside. Since a spray foam system consists of spray foam coating and granules after 10 20 years some of the coating and granules will naturally wear away. A spray foam roof can be the last roofing system you ll ever need on a building. Metal roofing manufacturers typically extend a 25 year warranty.

Polyurethane spray foam metal roof insulation the spray can be basically applied on top or bottom of the metal roofing surfaces. Condensation control in metal buildings. The foam never gets touched and never loses r value. Spray polyurethane foam roofs provide a roof system that is seamless monolithic and self flashing with a high insulation value r value strong adhesion and wind uplift resistance.

Your metal roof expands when it s hot and contracts when it s cold. The challenge comes when you combine systems spraying foam onto the metal roofing itself. A spray polyurethane roof can be installed over a leaking metal roof. Since spray foam is monolithic and closed cell it will create a watertight barrier over the entire metal roof.

This condensation can range from very irritating rain drops on the head to damaging very expensive equipment which can cause thousands of dollars in damage. With building code compliance and sustainable building envelopes at the forefront in today s marketplace spray polyurethane foam insulation spf applied to single skin metal roof and wall panels is an alternative to insulated metal panels with a manufacture applied polyurethane foam core. Combining foam and metal roofing. Spray polyurethane foam is a valuable roofing system as spf roofs last indefinitely and hold their insulation value forever.

At year 10 20 a contractor will add more coating and granules. Most of the time extreme heat shifts cause that leak. In retrofit or re roof applications the foam can be applied directly to the existing roof in many cases. Compared to the fiberglass batts this insulation is much better.

Most unvented attics incorporate spray polyurethane foam spf on the underside of the roof deck and attic walls. The concern of manufacturer mbci is over who is going to verify that the foam will not cause corrosive damage over time to the roofing.